Ex. No.1 AIM: Study data types in SQL and usage of various Data Definition Language commands. PROCEDURE: What is SQL? SQL is structured Query Language which is a computer language for storing‚ manipulating and retrieving data stored in relational database. SQL is the standard language for Relation Database System. All relational database management systems like MySQL‚ MS Access‚ Oracle‚ Sybase‚ Informix‚ postgres and SQL Server uses SQL as standard database language. Also they are using different
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shell ordinarily do while a command is executing? What should you do if you do not want to wait for a command to finish before running another command? A1) The shell goes to “sleep” until the command has been processed. You can run a program in the background‚ which will allow you to run more than one at a time. Q3) What is a PID number? Why are these numbers useful when you run process in the background? Which utility displays the PID numbers of the commands you are running? A3) process
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DISK OPERATING SYSTEM INTRODUCTION: • MS-DOS (Microsoft Disk Operating System) is a single-user‚ single-tasking computer operating system that uses a command line interface (CLI). • It also works as an interpreter between user and computer. • The term DOS can refer to any operating system‚ but it is most often used as shorthand for MS-DOS (Microsoft disk operating system). Originally developed by Microsoft for IBM‚ MS-DOS was the standard operating system for IBM-compatible
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SQL has many unique commands that help simplify database commands. SQL’s UNION command allows us to combine the results of two or more database queries that are not necessarily linked through a database relationship. For example‚ if we have a school database and wish to use it to create a master contact list for all students‚ faculty and staff that could be difficult. Looking at our database‚ we can discover that the records corresponding to each of these constituencies appears in separate database
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BOOK REVIEW COMPANY COMMAND THE BOTTOM LINE BY: JOHN G. MEYER‚JR. IG ASSESSOR STUDENT OFFICER LT ABHISHEK SHARMA YO’S FD-1606 ‘B’ TP CONTENTS 1. Introduction 2. About the author 3. About the book 4. Quality of presentation
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CS457_J1_HW10_13259_PRAVEEN SINDOGI 01) Briefly describe what is the benefit to use SQL*Plus substitution variables? Use SQL*plus substitution variables to: Store values temporarily. Single ampersand (&) Double ampersand (&&) DEFINE command Pass variable values between SQL statements. Dynamically alter headers and footers. 02) Briefly describe what is the benefit to use the ‘&’ substitution variable? 03) Briefly describe how to using character and date values with substitution variables in
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returns. Describe the shape of the distribution. Answer) The Histogram for the real Returns‚ of Standard and Poor’s stock Index can be plotted using the following “R” commands: >table table Please refer to the following screenshot: Once the above command is executed‚ we can attach the table “table” using the following attach command: >attach (table) Please Refer to the following screenshot: 1. Exercises 1.57 & 1.58. Stock performance. Page 46 How well have stocks done over the past generation
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to Accessories and select LXT terminal to evoke the Linux text interface. The prompt will be: pi@rasberrypi - $ Enter the command: sudo apt-get install update This will install all updates on the Rasberry Pi and have all packages up to date. 2.
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while a command is executing? What should you do if you do not want to wait for a command to finish before running another command? Answer: The shell waits for the command to finish executing. You can send the command to the background by using "&". 2. What is a PID number? Why are these numbers useful when you run processes in the background? Which utility displays the PID numbers of the commands you are running? Answer: A PID number is an identification number assigned to a command running in
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allowed computers to cross over from industry to the home. Today‚ engineers continue to fine tune CPUS‚ making them smaller and more powerful. CPU Parts CPUs are made up of six key components‚ which work in conjunction to process and execute commands. The control unit is the brain of the CPU. This part receives the input data and decides where to send the processed information. The instruction cache is where the control unit’s instructions are stored. Specific instruction data is loaded into
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